Companies like GAP choose their models by contacting local modeling agencies and posting casting calls. The agencies send the models they feel would be a good fit and then the casting directors in charge pick the final models they'll hire.
Craig's list
The recommended spark plug gap for a 1987 Volvo (all models) is .028"
Prescribed Spark Plug Gap for Buell Blast models is from 0.038" to 0.043".
For year models 1995-2003, set gap to .030 2004-present, gap to .035
The manufacture recommends 0.024" to 0.027" gap for all 400 models..4X2 and 4x4.
The plug gap for a 9.9hp Mercury outboard, ( all models ), is .035 - .040in.
Spark plug gap is .030 thousandths on all their engines and if it's old enough to have points, .020 thousandths for all models.
Delia's models are mainly models have an agency representing them. When Delia's needs models, they'll contact agencies to set up a casting and will choose the ones that they want.
Need the model. the folowinjg are 6.5NH models. these are most of the plugs onan uses. Different models can be different than these so call Cummins Northwest as they build the onan. Spec A & D -- RH8C or H8C Gap .025 Spec J & K -- RN5C or N5C Gap .025 6.5 NH-3CR-16004N -- RN5C or N5C Gap .025 6.5 NH/3CR/16004P -- RS17YX Gap .025
because they are best asian models
NGK recommendations 09/1991-1995 All models except XSi BCP6E gap 0.8mm 09/1991-07/1994 XSi BKR6EK pre gapped 1995-2001 All models BKR6EZ gap 0.9mm.
To secure an audition for a child to Gap Kids as a model, a submission to a casting call agency that regulates the casting of these models would be necessary.